China Chq Cold Drawn 10b21 Annealed Phosphate Coated Cold Heading Quality Boron Screw Steel Wire, Find details about China Hardware, Wire Rod from Chq Cold Drawn 10b21 Annealed Phosphate Coated Cold Heading Quality Boron Screw Steel Wire
Grade | Chemical Composition(%) | ||||||||||
C | Si | Mn | P | S | Al | Ti | B | Cr | Mo | V | |
10B21 | 0.18~0.23 | ≤0.10 | 0.70~1.00 | ≤0.030 | ≤0.035 | - | ≥0.0005 |